I am not a graphical designer. This is my first livery! I am unlikely to be able to respond to requests that require highly detailed graphic work.
Before selecting their modern Evo-Blue livery, United was said to be testing a few different concepts as below. This fictional concept livery is a bit of an amalgamation of them. The registration is adapted from a United DC-10 that appears to no longer be flying. Naturally, United is not currently operating the MD-11, so this livery is purely fictional.
Here are a few of the inspiration images:
https://i.imgur.com/czAL0wg.jpg
https://i.ytimg.com/vi/R33_uV4BmKY/maxresdefault.jpg
